Please check your audio by clicking on the audio icon at the bottom right of your student laptop. Click the audio icon 
and make sure the volume is turned up.
If you see an ‘x’ next to the audio icon, 
your sound is muted. Click the icon and click the icon in the panel to unmute the sound.
If the audio is turned up and there is still no sound, you will need to hold the power button down for 20 seconds making sure the system completely shuts down and the screen goes black. Wait 30 seconds and then power the machine back on.